High- n ideal and resistive shear Alfvén waves in tokamaks
TLDR
In this paper, the ideal and resistive MHD equations for the shear Alfven waves are studied in a low-β toroidal model by employing the high-n ballooning formalism.About:
This article is published in Annals of Physics.The article was published on 1985-04-15 and is currently open access. It has received 450 citations till now. The article focuses on the topics: Resistive touchscreen.read more
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Electromagnetic banana kinetic equation and its applications in tokamaks
TL;DR: In this article, a banana kinetic equation in tokamaks that includes effects of the finite banana width is derived for the electromagnetic waves with frequencies lower than the gyro-frequency and the bounce frequency of the trapped particles.
Journal ArticleDOI
The computation of resistive MHD instabilities in axisymmetric toroidal plasmas
TL;DR: In this paper, the resistive MHD stability equations are transformed into three coupled second-order equations, one of which recovers the equation solved by the NOVA code in the ideal limit.
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Stability of the toroidicity induced Alfven eigenmode in JT-60U ICRF experiments
TL;DR: In this paper, it was shown that the stability of toroidicity induced Alfven eigenmodes (TAEs) in ICRF experiments at JT-60U is strongly dependent on mode location.
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Zonal flow generation and toroidal Alfvén eigenmode excitation due to tearing mode induced energetic particle redistribution
TL;DR: In this article , the generation of the n = 0 zonal flow and excitation of the toroidal Alfvén eigenmode (TAE) due to the redistribution of energetic particles (EPs) by the m / n = 2/1 tearing mode (TM) are systematically studied with the hybrid drift-kinetic magnetohydrodynamic (MHD) simulations.
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Nonlinear alfvénic fast particle transport and losses
TL;DR: In this article, the authors investigated double-resonant mode coupling with respect to various overlapping scenarios and found that, depending on the radial mode distance, double resonance is able to enhance growth rates as well as mode amplitudes significantly.
References
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Finite‐Resistivity Instabilities of a Sheet Pinch
TL;DR: In this paper, the stability of a plane current layer is analyzed in the hydromagnetic approximation, allowing for finite isotropic resistivity, and the effect of a small layer curvature is simulated by a gravitational field.
Journal ArticleDOI
Resistive instabilities in general toroidal plasma configurations
TL;DR: In this article, the Mercier criterion for the stability of the ideal magnetohydrodynamic interchange mode is derived, the generalization of the earlier stability criterion for resistive interchange mode was obtained, and a relation between the two was noted.
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A theory of long‐period magnetic pulsations: 2. Impulse excitation of surface eigenmode
Liu Chen,Akira Hasegawa +1 more
TL;DR: In this paper, a wave equation that shows a coupling between a surface wave and a shear Alfven wave is derived, and a theory of long-period magnetic pulsations (Pc 3 to Pc 5) is presented as an initial value problem to explain impulse-excited pulsations.
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Decay of MHD waves by phase mixing
J. Tataronis,W. Grossmann +1 more
TL;DR: In this article, the authors examined the dispersion relation for plasmas with non-uniform profiles and compared the results with those of a sharp boundary model, showing that the frequency of the waves is a complex quantity having a real and imaginary part.
Journal ArticleDOI
Kinetic-ballooning-mode theory in general geometry
TL;DR: In this article, a systematic procedure for studying the influence of kinetic effects on the stability of MHD ballooning modes is presented, which includes effects due to finite gyroradius, trapped particles, and wave-particle resonances.
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